Waste Energy Hot Water Heater

This unit is designed to efficiently use the energy wasted from the furnace exhaust heat which goes out the chimney. Instead of using the same size coil throughout the whole system as the feed and return, smaller coils are used inside the pipe to connect the feed to the return. The smaller diameter coils allow small quantities of water to be heated at one time, faster and more efficiently. The small coils also allow for a more condensed unit, proclaiming more efficiency. It is important though, to maintain at least the same volume of flow throughout the whole system as supplied by the feed.

FIG. 1 is a plain view of completed unit.

FIG. 2 shows an end view, looking straight through end of flue pipe.

FIG. 3 shows rings assembled with flare adaptors.

FIG. 4 shows completed coil.

FIG. 5 shows flare adaptor and nut.

FIG. 6 shows unit installed in domestic type flue.

Before the invention description commences, it is to be understood that this invention being described herein in not to be limited to the construction details herein as it is highly obvious that the invention may be graduated or reduced in size with the need of hot water volumn, whether it be more or less, also it is not meant to hold limitations to the positioning and arrangement of the invention as employed in FIG. 6.

FIG. 1. Is a completed view of the invention which shows a cutaway window with coils 9 positioned to the inside of flue 10 and coils 9 protruding through to the outside of flue 10. Flare nuts and adaptors 8 A-B joining together coils 9 to conduit ring or header 7. FIG. 2 showing an open end view of flue 10 with coils 9 positioned to the inside perimeter of the flue 10 and coils 9 protruding through to the outside of flue 10. FIG. 3 shows conduit formed into header or ring 7 with flare adaptor 8 B. FIG. 4 shows conduit shaped into a spiral coil 9 which is approximately eight times smaller in size than conduit use for header ring 7. FIG. 5 show flare nut 8 A. and flare adaptor 8 B. FIG. 6 shows inlet water suply E to gate valve G to one way valve H to tank D. Following arrows to pump B and on to gate valve G through invention 1 back to tank D and to outlet line F to various taps. Pressure safty valve C is on tank D safty valve C is also found at top of invention 1.